UK compost
What compost for velvet cotyledon in the UK?
Cotyledon velutina
More about velvet cotyledon in the UK
Which compost velvet cotyledon needs
For velvet cotyledon the mix to buy is peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Mix standard cactus compost with 30% perlite or coarse sand for rapid drainage. Slightly acidic to neutral pH 6.0–7.0. Terracotta pots help prevent overwatering by allowing soil moisture to evaporate through the pot wall.In British garden centres the bagged growing medium is sold simply as “compost” (multipurpose, ericaceous, or loam-based John Innes), which is a different thing from the rotted garden “compost” you make in a heap — for a pot you want the bagged kind.
Peat-free compost
Buy peat-free. The sale of peat compost to home gardeners is being phased out across the UK, and the RHS recommends peat-free on environmental grounds. A good peat-free multipurpose grows velvet cotyledon perfectly well; the one habit to change is watering — peat-free dries faster at the surface while still moist below, so check by feel a knuckle deep rather than trusting the look of the top.
Ericaceous or multipurpose?
Velvet Cotyledon does not want a rich, water-holding compost — it wants sharp drainage. Cut peat-free multipurpose roughly half-and-half with horticultural grit, sharp sand or perlite, and always pot into a container with drainage holes. A "cactus and succulent" bagged mix is a ready-made shortcut.
For the full recipe, pH and drainage detail (US wording), see the velvet cotyledon soil & potting-mix guide.
Compost for Velvet Cotyledon in the UK — frequently asked questions
What compost should I use for velvet cotyledon in the UK?
Use peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Mix standard cactus compost with 30% perlite or coarse sand for rapid drainage. Slightly acidic to neutral pH 6.0–7.0. Terracotta pots help prevent overwatering by allowing soil moisture to evaporate through the pot wall. In UK garden centres this is sold simply as "compost" — the bagged growing medium, not garden-made leaf-mould — so match the description above rather than a brand.
Can I use ordinary multipurpose compost for velvet cotyledon?
Not on its own — multipurpose compost holds too much water for velvet cotyledon and will rot the roots. Cut it roughly 50:50 with horticultural grit, sharp sand or perlite so it drains fast.
Should the compost be peat-free?
Yes. Sales of peat compost to home gardeners are being phased out in the UK, and the RHS recommends peat-free for environmental reasons. Modern peat-free multipurpose composts grow velvet cotyledon perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does velvet cotyledon need grit or perlite added?
Yes — velvet cotyledon must have sharp drainage. Add about one part horticultural grit or perlite to one part compost, and always use a pot with drainage holes.
What pot and drainage does velvet cotyledon need?
Always a pot with drainage holes. Gritty succulent compost. Stand it on a saucer, empty any water that collects after watering, and never leave the pot sitting in a full outer cover — waterlogged compost in a cool UK room is the commonest cause of root rot.
More velvet cotyledon care
See the full velvet cotyledon care guide, its UK watering and UK hardiness.